Hello Ritesh,

Hope you're doing well.

It id difficult to compare them, as, both of the institutions are highly prestigious and highly ranked. So, the best colleges for B.Com hons in University of delhi, which are either equivalent or better than St.Xaviers Kolkata:-

1. Sri ram college of commerce.
2. Hindu college
3. Hansraj college
4. Ramjas college
5. Lady shri ram college for women
6. Sri venkateshwara college
7. Shaheed bhagat singh college

Hope this solves your query.